I would say landslide because it does cause because of the lost of friction.
C it contains only yellow and blue
Stationary front
warm front=2
occluted front=3
stationary front= 4
cold front=1
<span>Circadian rhythm</span>, also known as circadian clock or body clock is a biological process that follows a 24 hour cycle (approximately). It is said that circadian rhythm is dictated by natural factors in the body, as well as environmental signals.